VOICE BASED CONTROL OF HOME APPLIANCES USING LabVIEW:
Abstract:
The concept of this project is based on the control of home appliances such as fan,light and electric motor.The major plus of this project is using LabVIEW software for control purpose.Because the cost of home appliances control using microcontroller is higher than LabVIEW control.
Components used in this project:
Components needed for DAQ:
Abstract:
The concept of this project is based on the control of home appliances such as fan,light and electric motor.The major plus of this project is using LabVIEW software for control purpose.Because the cost of home appliances control using microcontroller is higher than LabVIEW control.
Components used in this project:
- Microphone to receive voice command
- Labview software designing PC
- Relay circuit.
- NI-DAQ system
- Appliances-Fan & Light
- Serial Port Cables
• Composed of a standard personal
computer, suitable software, and appropriate hardware tailored to the task
• User-defined systems
• Computer assisted
• Virtual
Instrument is an instrument has the all main properties of a real one, but it
is being “only” a computer program
• Hardware,
software, interface between software and hardware
• Hardware
mainly consists of sensors and transducers
• Software
supporting data acquisition
• Interface
(I/O): any combination of
industry standard hardware--IEEE-488.2, RS-232 devices, VXI/MXI systems, field
buses
About DAQ(Data Acqiustion System):
- Data acquisition is the process of acquiring signals that measure real world physical quantitiess and converting them into digital numeric values.
- The collected real time value is manipulated by a computer.
- The process of Data acquisition systems is to convert analog waveforms into digital values.
- Sensors that convert physical parameters into electrical signals.
- Signal conditioning system to condition the signal
- ADC Converter.
A relay is an electrically operated manual switch. The mechanism used in this relay is electromagnet to operate a switch, but other
operating principles are also used in various fields.Among various relays electromagnet relay is common in various application. Relays are used to
control a circuit by a low-power signal or where several circuits must be controlled
by one signal communication.
Serial Port Communication:
•
Popular
means of communication between computer and peripheral device
•
Data
sent one bit at a time across the cable
•
Used
for low transfer rates or long distances
•
Only
a cable is needed since most computers have at least one available serial port
Process of this project:
Voice from the microphone is received and processed in LabVIEW voice zone.Some appliances to be controlled is initially feed on the prescribed software.Hence based on the data of voice acquired the following appliances are detected.If the commander command to switch on the fan,the voice processing zone detects the word and it enables the signal to ON the fan.One the pulse signal is acquired the relay circuit is used to operate the home appliances.DAQ is used to convert the analog voice signal into digital form which is processed by computer.
Conclusion:
Hence this project is identified to reduce the human work or effort.The person from his actual place can control the appliances in his home through his voice command.
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